Cabomba furcata
A PLANTS profile of Cabomba furcata (forked fanwort) from the USDA PLANTS database
http://plants.usda.gov/java/profile?symbol=CAFU13

ABC
Forked from Bittornado, handles multiple torrents.
http://pingpong-abc.sourceforge.net/

Zamia amblyphyllidia
Threatened variant with forked leaflets.
http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/taxon.pl?name=Zamia+amblyphyllidia

aMule
aMule - the all-platform P2P client!
http://www.amule.org/

Popcorn Park Zoo
Popcorn Park Zoo is a wildlife rescue/animal sanctuary and refuge established in 1977 for the sole purpose of providing a refuge for wildlife that were sick, elderly, abandoned, abused, or injured, exploited and which could no longer survive in their natural habitat.
http://ahscares.org/page2.asp?page=popcornpark&style=2

Vintony Plumbing and Heating
Fully licensed and insured plumbing, electrical, heating, cooling, construction and home improvement contractor. Also offering duct cleaning and sewer and drain cleaning services. Serving Ocean and Monmouth counties in NJ. In business over 30 years.
http://www.vintony.com/

Chainki
Wiki-based directory forked from the Open Directory.
http://en.chainki.org/

WikkaWiki
WikkaWiki is a flexible, standards-compliant and lightweight wiki engine written in PHP, which uses MySQL to store pages. Forked from WakkaWiki. Designed for speed, extensibility, and security. Released under the GPL license.
http://wikkawiki.org

X.Org
Target is to provide a less monolithic and modernized X and to be more open than the XFree86 project. The project forked from XFree86 with version 4.4 RC2 due to a license change after it.
http://xorg.freedesktop.org/

BrazilFW Firewall and Router
Single floppy disk firewall (forked from Coyote Linux) with many optional features including tiny proxy, dhcp server, traffic shaping, and is controller via an HTTP interface. Runs entirely in RAM without the need for any type of disk drive, but can boot off a floppy, hardisk or cdrom.
http://www.brazilfw.com.br/